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| <div class="subTitle">org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources</div> |
| <h2 title="Class CGroupsMemoryResourceHandlerImpl" class="title">Class CGroupsMemoryResourceHandlerImpl</h2> |
| </div> |
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| <ul class="inheritance"> |
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| <li>org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources.CGroupsMemoryResourceHandlerImpl</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/MemoryResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">MemoryResourceHandler</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></dd> |
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| <pre>@InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public class <span class="typeNameLabel">CGroupsMemoryResourceHandlerImpl</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/MemoryResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">MemoryResourceHandler</a></pre> |
| <div class="block">Handler class to handle the memory controller. YARN already ships a |
| physical memory monitor in Java but it isn't as |
| good as CGroups. This handler sets the soft and hard memory limits. The soft |
| limit is set to 90% of the hard limit.</div> |
| </li> |
| </ul> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#bootstrap-org.apache.hadoop.conf.Configuration-">bootstrap</a></span>(org.apache.hadoop.conf.Configuration conf)</code> |
| <div class="block">Bootstrap resource susbsystem.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#postComplete-org.apache.hadoop.yarn.api.records.ContainerId-">postComplete</a></span>(org.apache.hadoop.yarn.api.records.ContainerId containerId)</code> |
| <div class="block">Perform any tasks necessary after container completion.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#preStart-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">preStart</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a> container)</code> |
| <div class="block">Prepare a resource environment for container launch</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#reacquireContainer-org.apache.hadoop.yarn.api.records.ContainerId-">reacquireContainer</a></span>(org.apache.hadoop.yarn.api.records.ContainerId containerId)</code> |
| <div class="block">Require state for container that was already launched</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#teardown--">teardown</a></span>()</code> |
| <div class="block">Teardown environment for resource subsystem if requested.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsMemoryResourceHandlerImpl.html#updateContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">updateContainer</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a> container)</code> |
| <div class="block">Update state for container that was already launched</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
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| <div class="details"> |
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| <h3>Method Detail</h3> |
| <a name="bootstrap-org.apache.hadoop.conf.Configuration-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>bootstrap</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>> bootstrap(org.apache.hadoop.conf.Configuration conf) |
| throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#bootstrap-org.apache.hadoop.conf.Configuration-">ResourceHandler</a></code></span></div> |
| <div class="block">Bootstrap resource susbsystem.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#bootstrap-org.apache.hadoop.conf.Configuration-">bootstrap</a></code> in interface <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>(possibly empty) list of operations that require elevated |
| privileges</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="reacquireContainer-org.apache.hadoop.yarn.api.records.ContainerId-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>reacquireContainer</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>> reacquireContainer(org.apache.hadoop.yarn.api.records.ContainerId containerId) |
| throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#reacquireContainer-org.apache.hadoop.yarn.api.records.ContainerId-">ResourceHandler</a></code></span></div> |
| <div class="block">Require state for container that was already launched</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#reacquireContainer-org.apache.hadoop.yarn.api.records.ContainerId-">reacquireContainer</a></code> in interface <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>containerId</code> - id of the container being reacquired.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>(possibly empty) list of operations that require elevated |
| privileges</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="updateContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>updateContainer</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>> updateContainer(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a> container) |
| throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#updateContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">ResourceHandler</a></code></span></div> |
| <div class="block">Update state for container that was already launched</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#updateContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">updateContainer</a></code> in interface <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>container</code> - the container being updated.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>(possibly empty) list of operations that require elevated |
| privileges</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="preStart-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>preStart</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>> preStart(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a> container) |
| throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#preStart-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">ResourceHandler</a></code></span></div> |
| <div class="block">Prepare a resource environment for container launch</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#preStart-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">preStart</a></code> in interface <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>container</code> - Container being launched</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>(possibly empty) list of operations that require elevated |
| privileges e.g a) create a custom cgroup b) add pid for container to tasks |
| file for a cgroup.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="postComplete-org.apache.hadoop.yarn.api.records.ContainerId-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>postComplete</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>> postComplete(org.apache.hadoop.yarn.api.records.ContainerId containerId) |
| throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#postComplete-org.apache.hadoop.yarn.api.records.ContainerId-">ResourceHandler</a></code></span></div> |
| <div class="block">Perform any tasks necessary after container completion.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#postComplete-org.apache.hadoop.yarn.api.records.ContainerId-">postComplete</a></code> in interface <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>containerId</code> - of the container that was completed.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>(possibly empty) list of operations that require elevated |
| privileges</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="teardown--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>teardown</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperation.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperation</a>> teardown() |
| throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#teardown--">ResourceHandler</a></code></span></div> |
| <div class="block">Teardown environment for resource subsystem if requested. This method |
| needs to be used with care since it could impact running containers.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html#teardown--">teardown</a></code> in interface <code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandler</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>(possibly empty) list of operations that require elevated |
| privileges</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/ResourceHandlerException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">ResourceHandlerException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="toString--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> toString()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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